Vent housing



FIG. 1 is a front perspective view of the design of the vent housing;

FIG. 2 is a front elevation view of the design of FIG. 1, with the rear elevation view of the design being a mirror image of FIG. 2;

FIG. 3 is a first side elevation view of the design of FIG. 1, with the second side elevation view of the design being a mirror image of FIG. 3; and,

FIG. 4 is a top plan view of the design of FIG. 1.

The broken line disclosure represents unclaimed portions of the vent housing in which the design is embodied. 

CLAIM The ornamental design for a vent housing, as shown and described. 